Part Details | VARIABLE ATTENUATOR
5985-00-472-0813 A device for reducing the strength of an alternating current signal either continuously or in steps, without causing appreciable signal distortion, by maintaining substantially constant output and/or input impedance match. Continuously variable resistive devices must consist of at least two sections or one section with at least two rotating contacts. The item must have an overall attenuation rating. Includes tandem mounted variable resistors designed to function as an attenuator but whose terminals are not connected. See also RESISTOR, VAIABLE (as modified).
Alternate Parts: 2629, 10182012, 5985-00-472-0813, 00-472-0813, 5985004720813, 004720813
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 59 | OCT 19, 1970 | 00-472-0813 | 00838 ( ATTENUATOR, VARIABLE ) |
REFERENCE DRAWINGS & PICTURES
WAVEGUIDE TYPE
Cross Reference | NSN 5985-00-472-0813
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 2629 | 15305 | OMEGA LABORATORIES INC |
| 10182012 | 18876 | U S ARMY AVIATION AND MISSILECOMMAND |
Technical Data | NSN 5985-00-472-0813
| Characteristic | Specifications |
|---|---|
| APPLICATION DESIGN | WAVEGUIDE |
| VOLTAGE STANDING WAVE RATIO | B1.00$$B1.30 |
| OVERALL ATTENUATION RANGE IN DECIBELS | P0.0/P20.0 |
| ATTENUATION VARIATION METHOD | CONTINUOUS |
| BODY STYLE | WAVEGUIDE TYPE |
| OVERALL LENGTH | 1.744 INCHES NOMINAL |
| OVERALL HEIGHT | 0.764 INCHES NOMINAL |
| OVERALL WIDTH | 1.625 INCHES NOMINAL |
| ADJUSTMENT DEVICE TYPE AND QUANTITY | 1 SLOTTED SCREW |
| TERMINAL TYPE AND QUANTITY | 2 FLANGE |
| WAVEGUIDE FLANGE DESIGNATION | UG-39/U |
| MOUNTING FACILITY TYPE AND QUANTITY | 4 THREADED HOLE |
| MOUNTING FACILITY SCREW THREAD SERIES DESIGNATOR | UNC |
| MOUNTING FACILITY NOMINAL SCREW THREAD DIAMETER | 0.164 INCHES |
| MOUNTING THREAD QUANTITY | 32 PER INCH |
| MOUNTING FACILITY PATTERN | FOUR POSITION RECTANGULAR |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH | 1.280 INCHES NOMINAL |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH | 1.220 INCHES NOMINAL |
| WAVEGUIDE FLANGE TYPE | COVER |